Count Vowels

Count how many characters in text are vowels: a, e, i, o, u in either uppercase or lowercase.

Implement count_vowels(text).

Input

text: The text to inspect (ASCII characters).

Output

Return the number of vowels.

Contraintes

0 ≤ length ≤ 10,000

Exemples

Entrée :
text = "Hello World"

Sortie attendue :
expected = 3

Entrée :
std::string text = "Hello World";

Sortie attendue :
long long expected = 3;

Entrée :
string text = "Hello World";

Sortie attendue :
long expected = 3;

Entrée :
text = "AEIOU and y"

Sortie attendue :
expected = 6

Entrée :
std::string text = "AEIOU and y";

Sortie attendue :
long long expected = 6;

Entrée :
string text = "AEIOU and y";

Sortie attendue :
long expected = 6;

Références

Ce défi a été adapté pour CodeUtility. Suivez l'énoncé et les contraintes ci-dessus.

• GWU CS1111 Introduction to Software Development - lab sequence